Includes one plastic cradle and tie-down strap with an easy-to-release buckle. Strap loops around the cylinder and tray for added security. Great for shelves and side compartments. Cradle measures 20-1/2" L x 6-7/16" W x 1-19/32" H More economical than custom metal fabrication! Product Brochure Ziamatic Plastic Air Cylinder and Extinguisher Cradle with Tie-Down Strap Manual